Computers are electronic devices that process and store data following instructions given to them. They have revolutionized various aspects of modern life. Computers use a combination of hardware and software to perform tasks such as calculations, data analysis, communication, and entertainment. They consist of components like a central processing unit, memory, storage devices, input and output peripherals, and an operating system. Computers have evolved over time, becoming smaller, faster, and more powerful. They are used in various fields such as business, education, healthcare, and research. Computers have greatly impacted society, enabling advancements in technology, communication, and automation.